- V(D)J recombination
The process in which immune receptor V, D, and J, or V and J gene segments, depending on the specific receptor, are recombined within a single locus utilizing the conserved heptamer and nonomer recombination signal sequences (RSS).
- T cell receptor V(D)J recombination
The process in which T cell receptor V, D, and J, or V and J gene segments, depending on the specific locus, are recombined within a single locus utilizing the conserved heptamer and nonomer recombination signal sequences (RSS).
- immunoglobulin V(D)J recombination
The process in which immunoglobulin gene segments are recombined within a single locus utilizing the conserved heptamer and nonomer recombination signal sequences (RSS). For immunoglobulin heavy chains V, D, and J gene segments are joined, and for immunoglobulin light chains V and J gene segments are joined.
- halogenase activity
Catalysis of the reaction: R-CH + a halogen + oxygen donor = R-C-halogen +H2O.
- base J metabolic process
The chemical reactions and pathways involving base J (beta-D-glucosyl-hydroxymethyluracil), a hypermodified thymidine residue found in the genome of kinetoplastid parasites. This modified base is localized primarily to repetitive DNA, namely the telomeres, and is implicated in the regulation of antigenic variation. The base is synthesized in a two-step pathway. Initially, a thymidine residue in DNA is hydroxylated by a thymidine hydroxylase (TH) to form the intermediate hydroxymethyluracil, which is then glucosylated to form base J.